Universal joint.



No. 830,208. PATENTED SEPT. 4, 1906. F. H. BOGART.

UNIVERSAL JOINT.

APPLICATION FILED APR. 2, 1906.

I 2 SHEETS-SHEET 1.

PATENTED SEPT. 4, 1906.

P. H. BOGART.

UNIVERSAL JOINT.

APPLICATION FILED APR. 2, 1906.

' 2 SHEETS-SHEET 2.

Mew. 2W4

UNITED STATES PATENT OFFICE.

FRED H. BOGART, OF NEW BRITAIN, CONNECTICUT.

UNIVERSAL JOINT.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed April 2, 1906. Serial No. 309.339.

To all whom it may concern.-

Be it known that I, FRED H. BOGART, a citizen of the United States ofAmerica, residing at NewBritain, in the county of Hartford and State ofConnecticut, have invented new and useful Improvements in UniversalJoints, of which the following is a specification.

This invention relates to universal-joint construction, the object ofthe invention being to provide an improved construction of this class inwhich the several points of hearing in the two rectangularly-disposedplanes are of spherical form and are provided with bearings in anequatorial ring comprising several parts to permit of completelyinclosing the spherical bearing-points; and the invention consists inthe construction described in the following specification and carefullypointed out in the claims ap ended thereto, the invention being clearlyil ustrated in the accompanying drawings, in which Figure 1 is alongitudinal vertical section of the assembled joint on the line 1 1,Fig. 3. Fig. 2 is a detail ers ective view showing the manner of lockingt 1e balls in the holding or hearing rings and the openings throughwhich the arms that carry the balls pass. Fig. 3 1s a sectional view online 3 3, Fig. 1, lookmg in the direction of the arrows. Fig. 4 is adetail showing how the parts are assembled.

Referring to the drawings, a and b desig- I nate two hubs with a rectanular opening b (shown in Fig. 3,) in which the shafts are secured. Castor forged integral with each hub are two arms 0, that lie in the sameplane, as clearly shown in Figs. 1 and 3, and which are preferablycurved, as shown, in order to occupy as little space as. possible whenthe parts are assembled. The outer ends of the arms terminate in ballsor spheres d, which constitute the bearing-points of the universal oint.

The joint, as shown, is made up of two sets of curved arms carrying thebearing-balls at their outer ends and'placed in planes at right anglesto each other in the spherically-formed sockets of the bearing-rings,(designated at e.) These bearing-rings are semicircular and have in oneface thereof a hemispherical socketf, and two sockets that are eachonequarter of a hemisphere, as shown at g in Figs. 2 and 4, on thedividing-line of the ring.

The bearing-rings e are provided with openings or cut-out portions whichcommunicate with hemispherical sockets of the opposite ring. They areprovided with inclined shoulders, as shown at h, thus permitting thearms 0 to have free movement for a predetermined distance.

The bearing-rings 6 when assembled overlap each other, so as to bringthe joints ninety degrees apart. The hemis )herical socket in one ringis placed so that t e dividing plane or line of the oppositebearing-ring will pass through the diametrical plane of the bearingball,as clearly shown in Fig. 2. The two quarter hemispherical sockets inthese opposite bearing-rings form the remaining part of the sphericalsocket, so as to completely inclose the ball. The openings through thebearing-rings permit the rcqulsite movement of the arms 0 and are formedat the dividin line of the two sets of bearing-rings, as cleari y shownin Figs. 2 and 3.

The inner faces of the two sets of bearinglates have broadaccurately-turned surfhces. The bearing-rings e are'placed over theballs, and the ends of the arms a are held together firmly by means ofbolts k, which are passed through the holes of the bearingrings a, thesame being shown in Fig. 1. The outer edges of the two bearing-rings ehave a shoulder 'm turned thereon for the urpose of receiving a union orcoupling-bang n, which has a downturned portion 0, as designated in Fig.1, on one side and an internal thread 19 on the other side to enga e thecoupling-ring g, which is adapted to it either one of the shoulders mand engage the thread p on the band n.

If it is desired to inclose the operative arts of the universal jointfor the purpose 0 preventing dust or other foreign matter from inj uringthe same, I may use a casing 1", of leather or other suitable material,the same being clamped between the downturned portion 0 and the shoulderm .on one side of the coupling-band n and between the shoulder m and theclamping-ring g on the other side of the coupling-ring. and the portionof the casing adjacent thehub a being secured to the same by means of aband 8 or by any suitable means.

It will be seen that by means of this structure the hub at the right ofFig. 1 can move freely in a vertical plane to the extent limited by theshoulders h in the clamping-ring e and freely in a plane at right anglesthereto.

The universal joint herein described is one that can be quicklyassembled by first placing one of the bearing-rings against the ballthat the hub at the left of Fig. 1 can move I or spherical ends (1 onone side and theopposite bearing-ring e on the other side and securingthe same together by the bolt is and the coupling-band n.

I have shown and described the arms 0 cast or forged integral with thehubs a and b. This feature of construction, however,-is not essential,although preferred.

llaving thus described my invention, what .I claim, and desire to secureby Letters Patent of the United States, is-

1. In a universal joint of the class described, hubs carrying armsintegral therewith and terminating in spherical ends, a set ofbearing-rings having sockets for engaging the spherical ends, and meansfor securing the parts together.

2. In a universal joint, hubs carrying arms integral therewith locatedin planes at right an les to each other, said arms having sphericaIends,bearing-rings having sockets equally spaced therein, and means forclamping the bearing-rings to the spherical ends, the sets ofbearing-rings being located in the same plane and having openings forthe arms, whereby movement of the hubs in one plane is permitted.

3. In a universal joint, two hubs having ends, said arms being curvedand located in planes at right angles to each other, bearingrings havingsockets for receiving the balls, and means for holding the bearing-ringsin place.

5. A universal joint comprising hubs carrying arms and having balls attheir outer ends, said arms being curved and located in planes at rightangles to each other, bearingrings having sockets for receiving theballs, means for holding the bearing-rings in place, and means forclamping an inclosing casing to the bearing-rings.

FRED H. BOGART.

Witnesses:

K. I. CLEMoNs, I'IARRY W. BOWEN.

